a) Mobile company Pear has established that mobile phone sales will increase in the next 6months and that probability of such increase is 0.35. The probability that the interest rates onmobile financing loans will go up in the same period is estimated to be 0.70. The probabilitythat mobile phone sales or interest rates will go up during the next 6 months is estimated tobe 0.90.What is the probability that mobile phone sales will increase but interest rates will not duringthe next 6 months? Using probability rules, explain how you obtained the result.

Let A: Mobile phone sales will increase in the next 6 months B: Interest rates will increase in the…

Answered: a) Mobile company Pear has established…

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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According to a study. 74.9% of college freshmen majoring in business said that "to get training for a specific career" was a very important reason for their going to college. Consider a group of nine freshman business majors selected at random. Find the probability that no more than two of the nine freshmen in the group felt that this reason was very important. The probability that no more than two of the nine felt this reason was important is (Round to four decimal places as needed.)
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please show all steps
Set up a tree diagram labelled with events and probabilities (conditional and final joint probabilities) on all branches to correctly illustrate Problem 5 of the Conditional Probability WebWorks set (each student will have different numbers to work with). Show how to use the tree diagram with the appropriate probabilities to get your solution.
Suppose that the probability that any stock increases in price (over a 3 month period of time) is 60%. What is the probability that in a sample of 145 stocks that you buy that less than 55% increase in price (over a 3 month period of time)? (please round your answer to 4 decimal places)
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Every day, there is a 90% chance that Kevin will spill coffee on himself while driving to work. Looking at the next eight days, what is the probability that Kevin will spill coffee on himself on just two of those days? Looking at the next eight days, what is the probability that Kevin will spill coffee on himself on at least two of those days? Enter your answers as whole numbers or decimals.

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